Closure for filler openings



Dec. 27, 1927. 1,654,501

J. A. JENSEN CLOSURE FOR FILLER OPENINGS Filed Feb. '7, 1925 2 Sheets-Sheet l 52 1316;:

INVENTOR: -JTvmes,d Jensen TORNE YS.

Dec. 27, 1927. I 1,654501 J. A. JENSEN CLOSURE FOR FILLEfiornmnes Filed Feb. '7, 1925 2 Sheets-Sheet 2 IYCi I Fla 1.

2.9 50 .2 15 2 23 zy 1 21 I l a 1 14 I 1 5 17 I 1 in: 41

v INVENTOR: 4 Jp'mes fl. /e m6 TTORNEYS.

Patented Dec. 27, 1927.

UNHT-ED STAT-ES PATENT OFFICE.

JAMES A. Jnnsmmor PHILADELEHIA, PENNSYLVANIA, ASSIGNOR TO QUAKER CITY IRON wonxs, or PHILADELPHIA, PENNSYLVANIA, A ooRronArIon or PENN SYLVANIA.

oLosonn non FILLER ornnxnes.

Application filed February 7, 1925. 'Serial No. 7,524.

an improved closure of the typified character, the vent whereof is fitted with a re-v movable tire screen plug.

Another object of my invention is to connect a closure of the character stated to the filler neck or surrounding structure in a manner permitting free rotation while. retaining hinged relation thereto.

How the foregoing objects are attainedwill be apparent from the following detailed description of one practical embodnnent of my invention, reference belng had to the accompanying drawings constituting a part hereof, and in which like designating char acters distinguish corresponding parts in all the views.

Fig. I, is aside View of the rear portion of an automotive oil tank or truck, the filling closures whereof embody my invention.

Fig. II, is a broken top plan view of a manhole cover and filler closure embracing the present improvements.

Fig. 111, is a diametric section of the same; and I Fig. IV, is an enlarged longitudinal section through the removable lire screen.

Referring more in detail to the drawings the rear portion of a self-propelled oil tank truck is compresensively designated by the numeral 5, the same including separate-sections 6 mounted. in conventional manner upon a chassis 7, and provided with the cusscrew-threaded upper part adapted to accommodate the complementarily threaded annular flange 12 of a manhole cover 13, with interposition of a gasket 14 to ensure a tight joint. The manhole cover 13 is provided with upstanding projections 15 by means of which it maybe manipulated in the well known way for removal and replacement, and said cover is fashioned with a concentric annular lip 16. This lip 16 af-' fordsa lilleropening which is internally screw-threaded to receive the similarly threaded flange-17 of a'closure cap 18, having an embossment 19 with diametrically opposed lateral handles 20 by means of which said closure cap is screwed and unscrewed preferably made of spring wire and of a diameter to freely fit a suitably shaped groove 23 provided about the embossment 19 aforesaid. As best seen in Figs. II and 111, the shackle-ring 22 is fashioned from a lengthof suitable gauge wire medially configured to constitute said ring with the free ends 24: laterally brought into impingement, angularly bent and retroverted to afford elongated eyes 25 loosely accommodated be tween spaced vertical lugs 26 on the man hole cover 13, hinged connection being established through the medium of a split-pin 27 in the well known way. Thus it will be readily understood that the closure cap 18 may be freely removed from-and replaced inthe filler opening 16 without fear of disconnection relative to the manhole cover 13 and incident prevention of loss or n'iisplacement. I

In the center of the closure cap embossinent 19 and reinforced by inner and outer concentric bosses 28, 29 respectively, as best seen in Fig. H1, is a screw-11hread bore 30,

the outer portion whereof receives the com pleinentarily threaded nipple 31 of a conventional vent-device 82. Associated with the vent-device 32, is a removable lire screen plug comprehensively designated by the numeral 33, and illustrated to best advantage by Fig. IV. This plug 83 comprises a screw threaded ferrule 3tadapted for removable connection in the lowerinner end of the above referred to bore 30with a flared end 35 and suitably configured (hexagonal-for example) enlargement 36, whereby it may be conveniently manipulated by a Wrench. The flared end is also provided With an annular extension 37 affording a seat 38 for a reticulate material screen 39 of fine mesh, the same being held securely in place through the medium of a clamping ring 40 and the inward lrnurling of said annular extension at 41, as Will be readily understood by those conversant with the art. Obviously the removable lilter attachment 3?) prevents the ignition of gasoline or other vapors in the tank sections 6 in case a flame is brought near the vent 32. The wire screen 89' o f line mesh prevents the flame from igniting the vapors in similar manner, that the Wire screen around a miners oil lamp prevents the flame thereof from igniting the surrounding gases in a mine.

From the foregoing it will be readily understood that by my invention I have pro vided a simple and effective closure for filler openings the inherent usefulness whereof is so obvious as not to require further explanation, While the particular application shown and. described is by Way of example only, as other embodiments will suggest themselves Without departing from the spirit of my said invention or sacrificing any of its advantages.

Having thus described my invention I Clflllllll 1. In a closure for the filler openings of manhole covers comprising a flanged cap with an embossment and diametrically 0pposed manipulating handles, the embossment having an axial screw-threaded bore and a vent device threaded into the outer end of the aforesaid bore, the combination of an adjustable ferrule screwed into the inner end of the bore, said ferrule embodying a flared outer end with an annular extension for reception of a reticulate disk held in place by a clamping ring and inward lrnurling ot' the extension peripheral edge.

2. A tire screen attachment for the filleropening closures of manhole covers, comprising an externally screw-threaded ferrule having one end designed to provide aflare with a polygonal enlargement and an annular extension, a reticulate disk seating in the extension, and the free end of said annular extension being inwardly knurled to lock said reticulate disk securely inplace With interposition of a clam-pingring.

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this 2nd day of February, 1925.

JAMES A. J E NSEN. 

